421040604 has 12 divisors (see below), whose sum is σ = 982428104. Its totient is φ = 140346864.

The previous prime is 421040597. The next prime is 421040611. The reversal of 421040604 is 406040124.

It is an interprime number because it is at equal distance from previous prime (421040597) and next prime (421040611).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17543347 + ... + 17543370.

Almost surely, 2^421040604 is an apocalyptic number.

It is an amenable number.

421040604 is an abundant number, since it is smaller than the sum of its proper divisors (561387500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421040604 is a wasteful number, since it uses less digits than its factorization.

421040604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35086724 (or 35086722 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 421040604 is about 20519.2739637639. The cubic root of 421040604 is about 749.5052167690.

Adding to 421040604 its reverse (406040124), we get a palindrome (827080728).

The spelling of 421040604 in words is "four hundred twenty-one million, forty thousand, six hundred four".